CVE-2026-13604

The Pixelavo WordPress plugin before 1.5.4 registers an unauthenticated AJAX action, gated only by a nonce that it emits publicly on every front-end page, that forwards client-supplied event data to the configured Facebook Conversions API using the administrator's stored access token. This allows an unauthenticated visitor to inject arbitrary conversion events into the administrator's Facebook ads account and exhaust the configured API quota.

CVSS v3.1

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.17% chance of exploitation in the next 30 days, 7th percentile

Published

2026-08-01

Updated

2026-08-05

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/766c961e-e5aa-4ebe-8107-032f46316f91/

References

• CVE Record
• NVD entry

Related

• CVE-2026-13600
• CVE-2026-13605
• CVE-2026-13598
• CVE-2026-13609
• CVE-2026-13597
• CVE-2026-13610